SDL05 Key Chain Lock | Patented Quenched Steel Bicycle Anti-Theft Chain Lock

Brief Introduction
SDL05 chain lock is our newly launched patented chain lock. Made of quenched steel, it delivers outstanding shear resistance and superior anti-theft performance. It adopts a unique exclusive patented structure, stable key unlocking design. The steel chain is wrapped in thick woven fabric sleeve to prevent scratching bike paint. Multiple color options are available for customization. Flexible and easy to coil for storage, perfect for bicycle accessory wholesalers and bulk procurement for urban commuter and e-bike markets.

Material & Craftsmanship
High-strength quenched steel chain core for strong cut resistance. Wear-resistant woven fabric protective sleeve. Sturdy lock body with durable copper key cylinder. **Exclusive patented structure**.

Key Features

1. Exclusive patented structure, unique design different from ordinary chain locks.
2. Quenched steel chain, excellent anti-shear capability and high security level.
3. Fabric outer sleeve protects bicycle paintwork from scratches; flexible chain can be wrapped around bike frames, railings or poles.
4. Reliable key unlocking system, simple operation, no trouble of forgetting passwords.
5. Custom colors available for lock housing and fabric sleeve.
6. OEM available: laser engraved logos and customized packaging.

Application Scenarios
City commuter bicycles, mountain bikes, electric scooters, e-bikes, leisure bikes.

OEM & ODM Service
Custom colors for lock and fabric sleeve, custom laser-engraved logos and personalized color-box packaging. Small-batch mixed orders supported.